Life Sciences Commons^™

Studies On Method Of Infection And Control Of The Red Rot Fungus Of Sugarcane., Rene John Steib

LSU Historical Dissertations and Theses

No abstract provided.

Studies On Treatment Of Rice With Relation To Water Planting., Paul Emile Bouchereau

LSU Historical Dissertations and Theses

No abstract provided.

Agricultural Problems Of India., Teja Singh Gill

LSU Historical Dissertations and Theses

No abstract provided.

Studies On The Ecological Distribution Of The Genus Tegula At Bodega Bay, California, Allen Emmert Breed

University of the Pacific Theses and Dissertations

This paper is primarily a study of the factors contributing to the distribution of Tegula funebralis and Tegula brunnea in the vicinity of Bodega Bay, California. The two species seldom appear extensively together in the same zone. Tegula brunnea is found on the exposed outer coast of Tomales Point, but not in the immediate zone of Tegula funebralis. Tegula funebralis is found at some points north of Dillon Beach, but it is rarely in the presence of abundant Tegula brunnea. The writer hopes that his efforts may lay a basis for more ecological studies of this genera on the Pacific …

Trypanosoma Barbari, A New Species From The Newt Triturus Torosus, Donald Lewis Lehmann

University of the Pacific Theses and Dissertations

Whlle making studies of the parasites of fishes and amphibians at the Pacific Marine Station, Dillon Beach, California, during August, 1949, the writer encountered a hitherto unreported trypanasome from a female Triturus torosua. From the information obtained from the one smear, which was stained, the animal was presumed to be monomorphic, However, during February, 1950, a search was made expressly for the purpose of' obtaining specimens of this Pacific Coast newt, and of the eight animals examined six were parasitized. Contrary to the primary observations, evidence was accumulated which proved beyond any doubt that the flagellate is polymorphic and that, …

Crop Damage By Wildlife In California ; With Special Emphasis On Deer And Waterfowl, Earl Roy Biehn

University of the Pacific Theses and Dissertations

The problem of crop damage by wildlife is not a new one in California, but it has assumed a role of major economic importance only during the last few decades. Since this problem was first encountered in California, it has steadily increased in size and scope, until today in many areas of the state it is an important economic problem of the farmer; a pressing management problem for the biologists and wildlife technicians of the California Division of Fish and Game; a constant challenge to the game management agents of the Federal Fish and Wildlife Service; a great concern of …

Studies Of The Relation Of Mineral Elements To The Effect Of 2,4-Dichlorophenoxyacetic Acid On Rice., Mohammed Ishaque

LSU Historical Dissertations and Theses

No abstract provided.

Observations On A New Cystophorous Cercaria From Marine Snails, Jack Edward Copsey

University of the Pacific Theses and Dissertations

A survey of the trematode parasites of marine fishes of Tomales and Bodega Bays, California, was instituted In the Spring of 1948. Many adult forms were obtained, but the search progressively narrowed Itself to a study of the larval trematodss of an area of Tomales Bay, known, as Nick's Cove. Here an interesting cystophorous cercaria was discovered in the littoral snail, Thais emarglnata.

The Effect Of Certain Chemotherapeutic Substances On Antibody Production, Clifford C. Davis Jr.

Biology ETDs

The purpose of the present study was (1) to compare the production of specific antibodies in normal animals to that seen in similar animals receiving treatment with a given compound during the immunization period; (2) to correlate these responses with the over-all physiologic response of the animal to the compound; and (3) attempt to account for any variations from the normal by these animals.

Stem Anatomy Of Twelve Forbs Of The Family Compositae Growing Near Hays, Kansas, Cheng Lin

Master's Theses or Doctor of Nursing Practice

The importance of forbs to the livestock diet seems to come from their high percentage of calcium and phosphorus (Runyon, 1947). Furthermore, they also contain a higher amount of moisture (Savage and Heller, 1947) which makes them more succulent and therefore more palatable than the grasses during drought. This condition of greater succulence is due in part at least to _the more deeply penetrating roots of the forbs (Albertson, 1937). Observations also have indicated the possibility of a considerable amount of latex, oils and resins in the green forb plants. Because of the importance of these plants it was thought …

A Study Of The Effects Of An Estrogenic Complex On Bacillus Subtilus, Roger S. Wotkyns

Biology ETDs

In an effort to understand malignancies, a number of studies have been made on the quantitative aspects of the effects of synthetic carcinogenic hydrocarbons on microorganisms. The molecular similarities of these synthetic carcinogens and natural products such as the estrogens, the androgens, cholic acid, vitamin D and others have stimulated a great deal of interest in investigation of the possible carcinogenic nature of these natural products.

A Proposed Institutional-On-Farm Training Program For Negro Veterans Of Fayette County, David Hamilton

Tennessee State University Alumni Theses and Dissertations

No abstract provided.

The Influence Of Vitamins B1- And D-Deficient Diets On Albino Rats Infected With Labyrinthitis, George Hull Jr.

Tennessee State University Alumni Theses and Dissertations

No abstract provided.

The Effect Of Formalin On Futhering Delayed Separation Of Conjugating Paramecium Aurelia, Willard Casper Jordan

Tennessee State University Alumni Theses and Dissertations

No abstract provided.

Reactions Of Protozoa To Volatile Plant Extracts, Gladys M. Burgess

Tennessee State University Alumni Theses and Dissertations

No abstract provided.

Adequacy Of The High School Science Vocabulary In Biology In Filling The Needs For Normal Reading Of Popular Magazines, Clarence H. Stinemetze

Master's Theses or Doctor of Nursing Practice

The problem as implied in the title of this report has been an attempt to evaluate in terms of the vocabulary of the high school biology textbooks adopted by the State of Kansas. This study used five current magazines which were available to the students at the high school circulation desk, at the public library, on magazine counters, and in the home library.

A Study Of Saponification Rates As Characteristic Of Esters, Thomas F. Mitchell Jr.

Bachelors’ Theses

The saponification of esters has been the subject of considerable study, and the technology of manipulation of the reaction well defined. As a result, the reaction has become a quantitative standard for ester analysis. However the comparison of the rates of this reaction with various esters as charaeteristic of them has received little consideration compared to the course of the reaction. The work of Mr. F. E. Adler on the adaptation of fat constants to waxes suggested the problem. The thesis will attempt to ascertain any significant differences in the saponification rates of various esters with regard to their characterization.

A Study Of Fleas Of Rodents In The Albuquerque, New Mexico, Area, Lelia Ann Williams

Biology ETDs

In spite of the fact that Pasturella pestis, the the etiological organism of plague, has been reported from fleas and rodents in eleven counties of New Mexico, our knowledge of the fleas of the State has remained very incomplete and extremely meager. Recognizing the marked deficiency regarding our information of the Siphonaptera of New Mexico, I began in the spring of 1948 an investigation that has resulted in adding considerable information to our knowledge of the flea population of our State.

The present study includes a report of 36 species and subspecies of fleas recovered from several nests and by …

A Bioecological Study Of Pinyon Pine-Juniper Association At Juan Tabo In The Sandia Mountains Of New Mexico, Robert Hallett Parker

Biology ETDs

A survey of literature shows that no community or bioecological study has ever been made of the pinyon pine-juniper association as it occurs in the Upper Sonoran Life Zone in New Mexico and southern Colorado. This deficiency of knowledge relative to the pinyon pine-juniper community is in direct contrast to several studies that have been made of the same community in Arizona and Utah by the presence of dominant trees of entirely different species. Relative to the association in New Mexico, one of the dominant tress, the pinyon pine (Pinus edulis Engelm), has been investigated, but no bioecological and …

A Study Of The Intestinal Fauna Of The Frog, Russell W. Schaedler

Biology Honors Papers

This 23 page thesis describes experiments conducted to analyze the different types of parasites found in the digestive tracts of frogs.

Nile Blue Staining Of The Prostate Gland Of Living Mice, Herbert M. Schiller

Biology Honors Papers

This 36 page thesis examines the effect of Nile blue dye on the prostate of the mouse and an attempt to analyze the nature of the visible prostatic granules.

A Study Of The Flora Found In The Area Of North Bay, Ontario, Canada, Dorothy H. Post

Biology Honors Papers

This 20 page thesis describes natural settings found in the islands of North Bay, Ontario and the technical process of collecting plant specimens in this region. A full listing of specimens collected and statistics are included.

An Inquiry Into The Relationship Between Sulfur And Plant Growth, George E. Dillinger Jr., William F. Weber

Biology Honors Papers

This 64 page thesis attempts to clarify the relationship between sulfur and plant growth.

The Determination Of Choline Esterase Activity In Whole Brains Of Developing Rats, Charles Joseph Metzler

Biology ETDs

It is the purpose of this paper to report the results of quantitative investigations of the choline esterase activity in the rat in various states of its life cycle. Some work has been done on the acetylcholine content (Welsh and Hyde, 1944) in rats of various ages, but there is no reference in the literature to complete the quantitative determinations of the choline esterase activity in the whole brain of the rat throughout its life cycle.

Some Factors Associated With The Economic Feasibility Of Reseeding Privately-Owned Cattle Ranges In Utah, James R. Gray

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The forage depletion of western ranges which has occurred during the past century is partly the result of the belief by ranchers that the forage loss was temporary and not serious. Should more forage of a high quality be desired they thought it could be produced by reseeding the ranges. The native western forages, never abundant or luxurious by eastern concepts, nevertheless were of generally high qualities. Limited by low and erratically distributed precipitation, the sparse native forages have in many areas given way to low quality plants. These plants of low quality do not have to withstand the adverse …

The Effect Of Time, Quantity, And Kind Of Irrigation On The Yield Of Sugar Beets, Delos Boyd Archibald

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Investigations on factors affecting yield of sugar beets during the past two years at Newton and Garland, Utah, have shown two outstanding facts about irrigating sugar beets. First, the amount of water applied may not be as important as the time at which they receive it. Second, sugar beets should not be made to suffer for water in the early part of their growing season.

These observations suggest the need for further studies on method, time and quantity of irrigation. Further information on the most economical use of irrigation water for sugar beets would be of great value to the …

The Effects Of Fertilizer And Moisture On The Yield Of Sweet Corn, Rex F. Nielson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Sweet corn is rapidly becoming an important cash crop in many of the irrigated regions of the intermountain West. The lacome from this crop is relatively small in comparison to that from other major agricultural products; however, sweet corn production has a definite place in the economy of the region.

One of the factors limiting increasing acreage of sweet corn in many areas is low yields. Yields have been increased naterially in recent years with the development of hybrid varieties, superior to the standard varieties previously used. Better cultural practices are improving yields, but much remains to be done in …

A Preliminary Study Of The Siphonapterous Ectoparasites Found On The Mammals Of The Families Cricetidae And Muridae In Utah County, Vernon J. Tipton

Theses and Dissertations

The purpose of this study was to determine the species of fleas infesting the mammals of the families Cricetidae and Muridae in Utah County. This was accomplished by establishing twelve collecting stations throughout the county from which 198 mammals were collected. From these hosts, 392 fleas were collected representing three families, nineteen genera , and twenty-four species. Four species are new to the State of Utah and twenty-two species are recorded from Utah County for the first time.

The Introduced Fishes, Game Birds, And Game And Fur-Bearing Mammals Of Utah, Boris Hewitt Popov

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

For a number of years wildlife workers have realized the importance of the past histories of introduced species. Emphasis in recent years has been directed toward introductions because of the tremendous hunting and fishing pressures. Yearly increases in numbers of hunters and fishermen have been noted in Utah for the past forty years. It is hoped that this compilation of the histories of the introduced game and fish species of Utah will be of value to sportsmen and wildlife managers alike in planning future introductions.

The material included in this paper was obtained from United States Government reports, Utah Territorial …

Consumptive Use Of Water Studies In The Colorado River Area Of Utah, J. Y. Christiansen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

At the request of the State Engineer of Utah, a cooperative study beginning January 1, 1948, was initiated by the Utah Agricultural Experiment Station and the Division of Irrigation, U. S. Soil Conservation Service. These research agencies are being assisted financially, and by consultation, by the State Engineer who has also made arrangements for certain observations to be made and furnished by the U. S. Geological Survey, U. S. Weather Bureau, and the U. S. Bureau of Reclamation. The objective of this study is to obtain basic information regarding the consumptive use of water by agricultural crops, native vegetation, and …